Google today has released the second developer preview of Android M after officially announcing the software at Google I/O earlier this year. The changelog for the update can be found here. The second developer preview can be downloaded here for the Nexus 5, Nexus 6, Nexus 9, and Nexus Player.

Android M brings a variety of changes to the operating system. Our gallery of changes can be found here. Some major changes include granular app permissions, custom tabs in Chrome, improved app linking, Android Pay, fingerprint support, a new Doze smart power feature, faster charging times, Google Now improvements, and much more.

The second developer beta carries build number MPZ79M for the Nexus 5, Nexus 6, and Nexus 9, while the Nexus Player’s build is MPZ79N. The updates require ADB to flash and are factory images. An OTA will begin to rollout over the next few days.

You can find our detailed rundown of all of the update’s changes here, and a video of said changes here.